[JVM] Port line number tests to stepping framework.

Allow specifying JVM and JVM_IR as well as shared expectations.

Add the method name to the step.

Discard steps in synthetic methods.

compiler/testData/debug/stepping/conjunction.kt

@@ -1,4 +1,4 @@
-//FILE: test.kt
+// FILE: test.kt
 fun box() {
     val k = if (getA()
         && getB()
@@ -19,15 +19,15 @@ fun getC() = false
 fun getD() = true
 
 // LINENUMBERS
-// test.kt:3
-// test.kt:13
-// test.kt:3
-// test.kt:4
-// test.kt:15
-// test.kt:4
-// test.kt:5
-// test.kt:17
-// test.kt:5
-// test.kt:9
-// test.kt:3
-// test.kt:11
+// test.kt:3 box
+// test.kt:13 getA
+// test.kt:3 box
+// test.kt:4 box
+// test.kt:15 getB
+// test.kt:4 box
+// test.kt:5 box
+// test.kt:17 getC
+// test.kt:5 box
+// test.kt:9 box
+// test.kt:3 box
+// test.kt:11 box